[PATCH] D28791: [compiler-rt][crt] Simple crtbegin and crtend implementation

[Petr Hosek via Phabricator via llvm-commits]

phosek created this revision.
Herald added subscribers: mgorny, dberris.

Clang relies on existence of symbols that are normally provided by crtbegin.o/crtend.o. However, LLVM does not currently provide implementation of these files, instead relying on either libgcc or implementations provided as part of the system.

      

This patch provides a trivial implementation of crtbegin.o/crtend.o which at the moment does not support .ctors/.dtors, but it can be still used on systems which use .init/.fini arrays such as Linux. The support for .ctors/.dtors can be added in the future if necessary.


Repository:
  rL LLVM

https://reviews.llvm.org/D28791

Files:
  cmake/config-ix.cmake
  lib/CMakeLists.txt
  lib/crt/CMakeLists.txt
  lib/crt/crtbegin.c
  lib/crt/crtend.c
  test/CMakeLists.txt
  test/crt/CMakeLists.txt
  test/crt/dso_handle.cpp
  test/crt/lit.cfg
  test/crt/lit.site.cfg.in

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